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The return of the omap4_cm_wait_module_ready function is checked in order to avoid accessing the sysconfig register if the module is not in the correct state. In that case the _setup will exit without trying to reset using sysconfig. For the moment a warning is printed. A proper management of fclk and module reset will have to be done in order to init correctly the problematic IPs listed below. <4>omap_hwmod: ivahd: cannot be enabled (3) <4>omap_hwmod: iss: cannot be enabled (3) <4>omap_hwmod: tesla: cannot be enabled (3) <4>omap_hwmod: sdma: cannot be enabled (3) <4>omap_hwmod: sl2: cannot be enabled (3) <4>omap_hwmod: sad2d: cannot be enabled (3) <4>omap_hwmod: ducati: cannot be enabled (3) Signed-off-by: Benoit Cousson <b-cousson@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
157 lines
4.7 KiB
C
157 lines
4.7 KiB
C
#ifndef __ARCH_ASM_MACH_OMAP2_CM_H
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#define __ARCH_ASM_MACH_OMAP2_CM_H
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/*
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* OMAP2/3 Clock Management (CM) register definitions
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*
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* Copyright (C) 2007-2009 Texas Instruments, Inc.
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* Copyright (C) 2007-2009 Nokia Corporation
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*
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* Written by Paul Walmsley
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "prcm-common.h"
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#define OMAP2420_CM_REGADDR(module, reg) \
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OMAP2_L4_IO_ADDRESS(OMAP2420_CM_BASE + (module) + (reg))
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#define OMAP2430_CM_REGADDR(module, reg) \
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OMAP2_L4_IO_ADDRESS(OMAP2430_CM_BASE + (module) + (reg))
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#define OMAP34XX_CM_REGADDR(module, reg) \
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OMAP2_L4_IO_ADDRESS(OMAP3430_CM_BASE + (module) + (reg))
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#define OMAP44XX_CM1_REGADDR(module, reg) \
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OMAP2_L4_IO_ADDRESS(OMAP4430_CM1_BASE + (module) + (reg))
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#define OMAP44XX_CM2_REGADDR(module, reg) \
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OMAP2_L4_IO_ADDRESS(OMAP4430_CM2_BASE + (module) + (reg))
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#include "cm44xx.h"
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/*
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* Architecture-specific global CM registers
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* Use cm_{read,write}_reg() with these registers.
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* These registers appear once per CM module.
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*/
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#define OMAP3430_CM_REVISION OMAP34XX_CM_REGADDR(OCP_MOD, 0x0000)
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#define OMAP3430_CM_SYSCONFIG OMAP34XX_CM_REGADDR(OCP_MOD, 0x0010)
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#define OMAP3430_CM_POLCTRL OMAP34XX_CM_REGADDR(OCP_MOD, 0x009c)
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#define OMAP3_CM_CLKOUT_CTRL_OFFSET 0x0070
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#define OMAP3430_CM_CLKOUT_CTRL OMAP_CM_REGADDR(OMAP3430_CCR_MOD, 0x0070)
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/*
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* Module specific CM registers from CM_BASE + domain offset
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* Use cm_{read,write}_mod_reg() with these registers.
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* These register offsets generally appear in more than one PRCM submodule.
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*/
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/* Common between 24xx and 34xx */
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#define CM_FCLKEN 0x0000
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#define CM_FCLKEN1 CM_FCLKEN
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#define CM_CLKEN CM_FCLKEN
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#define CM_ICLKEN 0x0010
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#define CM_ICLKEN1 CM_ICLKEN
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#define CM_ICLKEN2 0x0014
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#define CM_ICLKEN3 0x0018
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#define CM_IDLEST 0x0020
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#define CM_IDLEST1 CM_IDLEST
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#define CM_IDLEST2 0x0024
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#define CM_AUTOIDLE 0x0030
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#define CM_AUTOIDLE1 CM_AUTOIDLE
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#define CM_AUTOIDLE2 0x0034
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#define CM_AUTOIDLE3 0x0038
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#define CM_CLKSEL 0x0040
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#define CM_CLKSEL1 CM_CLKSEL
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#define CM_CLKSEL2 0x0044
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#define OMAP2_CM_CLKSTCTRL 0x0048
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#define OMAP4_CM_CLKSTCTRL 0x0000
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/* Architecture-specific registers */
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#define OMAP24XX_CM_FCLKEN2 0x0004
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#define OMAP24XX_CM_ICLKEN4 0x001c
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#define OMAP24XX_CM_AUTOIDLE4 0x003c
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#define OMAP2430_CM_IDLEST3 0x0028
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#define OMAP3430_CM_CLKEN_PLL 0x0004
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#define OMAP3430ES2_CM_CLKEN2 0x0004
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#define OMAP3430ES2_CM_FCLKEN3 0x0008
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#define OMAP3430_CM_IDLEST_PLL CM_IDLEST2
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#define OMAP3430_CM_AUTOIDLE_PLL CM_AUTOIDLE2
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#define OMAP3430ES2_CM_AUTOIDLE2_PLL CM_AUTOIDLE2
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#define OMAP3430_CM_CLKSEL1 CM_CLKSEL
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#define OMAP3430_CM_CLKSEL1_PLL CM_CLKSEL
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#define OMAP3430_CM_CLKSEL2_PLL CM_CLKSEL2
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#define OMAP3430_CM_SLEEPDEP CM_CLKSEL2
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#define OMAP3430_CM_CLKSEL3 OMAP2_CM_CLKSTCTRL
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#define OMAP3430_CM_CLKSTST 0x004c
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#define OMAP3430ES2_CM_CLKSEL4 0x004c
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#define OMAP3430ES2_CM_CLKSEL5 0x0050
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#define OMAP3430_CM_CLKSEL2_EMU 0x0050
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#define OMAP3430_CM_CLKSEL3_EMU 0x0054
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/* CM2.CEFUSE_CM2 register offsets */
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/* OMAP4 modulemode control */
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#define OMAP4430_MODULEMODE_HWCTRL 0
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#define OMAP4430_MODULEMODE_SWCTRL 1
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/* Clock management domain register get/set */
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#ifndef __ASSEMBLER__
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extern u32 cm_read_mod_reg(s16 module, u16 idx);
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extern void cm_write_mod_reg(u32 val, s16 module, u16 idx);
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extern u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx);
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extern int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
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u8 idlest_shift);
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extern int omap4_cm_wait_module_ready(void __iomem *clkctrl_reg);
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static inline u32 cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
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{
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return cm_rmw_mod_reg_bits(bits, bits, module, idx);
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}
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static inline u32 cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
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{
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return cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
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}
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#endif
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/* CM register bits shared between 24XX and 3430 */
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/* CM_CLKSEL_GFX */
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#define OMAP_CLKSEL_GFX_SHIFT 0
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#define OMAP_CLKSEL_GFX_MASK (0x7 << 0)
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/* CM_ICLKEN_GFX */
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#define OMAP_EN_GFX_SHIFT 0
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#define OMAP_EN_GFX_MASK (1 << 0)
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/* CM_IDLEST_GFX */
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#define OMAP_ST_GFX_MASK (1 << 0)
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/* CM_IDLEST indicator */
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#define OMAP24XX_CM_IDLEST_VAL 0
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#define OMAP34XX_CM_IDLEST_VAL 1
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/*
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* MAX_MODULE_READY_TIME: max duration in microseconds to wait for the
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* PRCM to request that a module exit the inactive state in the case of
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* OMAP2 & 3.
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* In the case of OMAP4 this is the max duration in microseconds for the
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* module to reach the functionnal state from an inactive state.
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*/
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#define MAX_MODULE_READY_TIME 2000
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#endif
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